Smoking Cessation Apps for Smartphones: Content Analysis With the Self-Determination Theory

Choi, Jounghwa,Noh, Ghee-Young,Park, Dong-Jin JMIR Publications Inc. 2014 Journal of medical Internet research Vol.16 No.2

<P><B>Background</B></P><P>Smartphones are increasingly receiving attention from public health scholars and practitioners as a means to assist individuals’ health management. A number of smartphone apps for smoking cessation are also available; however, little effort has been made to evaluate the content and functions of these apps employing a theoretical framework.</P><P><B>Objective</B></P><P>The present study aims to analyze and evaluate the contents of smoking cessation apps available in South Korea employing the self-determination theory (SDT) as a theoretical framework for analysis. This study analyzes the extent to which smoking cessation apps have features that satisfy the basic needs identified in the SDT, which stimulate autonomous motivation. The type of motivational goal content manifested in the apps and how the goal content was framed are also explored. By assessing the features of smoking cessation apps based on the SDT, this study aims to offer direction for improvement for these apps.</P><P><B>Methods</B></P><P>Out of 309 apps identified from the iTunes store and Google Play (excluding 27 duplications), 175 apps were randomly drawn and analyzed. The coding scheme was drafted by the authors based on the SDT and gain/loss framing theory and was further finely tuned through the process of coder training and by establishing intercoder reliability. Once the intercoder reliability was established, the coders divided up the rest of the sample and coded them independently.</P><P><B>Results</B></P><P>The analysis revealed that most apps (94.3%, 165/175) had at least one feature that tapped at least 1 of the 3 basic needs. Only 18 of 175 apps (10.3%) addressed all 3 basic needs. For goal content, money (53.7%, 94/175) showed the highest frequency, followed by health (32.0%, 56/175), time (7.4%, 13/175), and appearance (1.1%, 2/175), suggesting that extrinsic goals are more dominantly presented in smoking cessation apps. For the framing of goal content, gain framing appeared more frequently (41.7%, 73/175).</P><P><B>Conclusions</B></P><P>The results suggest that these smoking cessation apps may not sufficiently stimulate autonomous motivation; a small number of apps addressed all 3 basic needs suggested by the SDT (ie, autonomy, competence, and relatedness). The apps also tended to present extrinsic goal content (primarily in terms of money) over intrinsic ones (ie, health) by primarily adopting gain framing. Implications of these findings for public health practitioners and consumers are discussed.</P>

사회적 규범 인식, 평가 성향, 음주의 사회적 편익인식이 대학생들의 음주 행위에 미치는 영향

최정화 ( Jounghwa Choi ),노기영 ( Ghee-young Noh ) 한국PR학회 2016 PR연구 Vol.20 No.3

The present study explored the roles that assessment orientation(AO) and perceived benefits of drinking to social relationship(PB) play in college students’ social norm acceptance. Specifically, we investigated how the influence of two types of social norms, i.e., injunctive norms(IN) and descriptive norms(DN), on collegiate drinking is moderated by these two variables. A national survey of Korean college students(N = 569) conducted online revealed: 1) greater influence of DN on the amount of drinking when students perceive greater benefits of drinking to their social relationships; 2) greater influence of PB on the amount of drinking among those with higher AO; 3) a significant three-way interaction of AO.DN.PB on the frequency of drinking, Theoretical implications to the social norm research and practical implications to public interventions to reduce collegiate drinking are discussed.

만경강 본류 중 TP 저감방안 연구

최정화 ( Choi Jounghwa ),권재옥 ( Kwon Jaeog ),이미선 ( Lee Miseon ),장욱 ( Jang Wook ),최근화 ( Choi Geunhwa ),고은혜 ( Ko Eunhye ),심서현 ( Sim Seo Hyeon ),조창우 ( Cho Changwoo ) 한국물환경학회 2022 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2022 No.-

미디어 이용에 따른 건강정보 과부하가 건강정보 불신에 미치는 영향

김주미(Kim, Joomi),최정화(Choi, Jounghwa),박동진(Park, Dong-Jin) 한국광고홍보학회 2018 한국광고홍보학보 Vol.20 No.2

최근 과도한 건강정보에의 노출이 미디어 이용자의 건강에 미치는 부정적 영향에 관한 우려가 증가하고 있다. 이에 본 연구는 미디어 유형 및 이용 정도에 따라 건강정보 과부하(구체적으로, 건강정보 과잉과 건강정보 혼동) 양상이 어떻게 다르게 나타나는지, 그리고 이러한 과부하가 건강정보 불신에 어떠한 영향을 미치는지 살펴보고자 하였다. 전국 성인 남녀를 대상으로 진행된 온라인 조사 자료(N = 903)를 토대로 경로 분석 및 다중 회귀 분석을 실시하였다. 분석 결과, 미디어 이용 정도는 건강정보 과잉과 건강정보 혼동 모두에 유의한 영향 변인인 것으로 나타났다. 구체적으로는 온라인 매체 이용 정도가 건강정보 과잉 및 혼동에, 인쇄 매체 이용 정도가 혼동에 통계적으로 유의한 영향을 끼치는 것으로 확인되었다. 한편 건강정보 과잉은 건강정보 혼동을 통하여 건강정보 불신에 영향을 미치는 것으로 나타났다. 본 연구는 국내 미디어 이용자의 건강정보 과부하 유형을 실증적으로 검증함으로써, 이용자의 혼동을 줄일 수 있는 명쾌한 건강정보 제공에 대한 실무적 함의를 제시한다. There have been growing concerns about the negative effects of exposure to excessive health information on the health of media users. Therefore, this study explores how different are the aspects of health information overload (i.e., excessive health information and confusion of health information) depending on the type and usage of the media, and how health information overload influences on distrust of health information. Results from a path analysis and multiple regression analysis supported all of the established hypotheses. In particular, the results revealed that media use influence significantly on both excessive health information and confusion of health information. Confusion of health information significantly mediated the relationship between excessive health information and distrust of health information. Implications of these results for health communication practitioners and media users are discussed.

국내 EGR과 SCR 장착 중형트럭 대기오염물질 배출 특성

손지환 ( Jihwan Son ),김정화 ( Jounghwa Kim ),정성운 ( Sungwoon Jung ),유흥민 ( Heungmin Yoo ),홍희경 ( Heekyung Hong ),문선희 ( Sunhee Mun ),최광호 ( Kwangho Choi ),이종태 ( Jongtae Lee ),김정수 ( Jeongsoo Kim ) 한국액체미립화학회 2016 한국액체미립화학회지 Vol.21 No.3

NOx and PM are important air pollutants as vehicle management policy aspect. Medium-duty truck is the main source of the pollutants although the vehicle market share is only 3.5%. National emission portion of NOx and PM form the mobile sourece are 14% and 16% respectively. In this study it was investigated that characteristics of air pollutants emission on medium duty truck equipped with EGR and SCR system. Vehicle’s test reflected driving cycle on the chassis dynamometer, and applied test cycle was WHVC(World Harmonized Vehicle Cycle) mode. The test cycle include three segments, represent urban, rural and motorway driving. Based on the test results NOx, PM, HC were less emitted form SCR vehicle than EGR vehicle. And CO was less emitted form EGR vehicle than SCR vehicle due to CO oxidation reaction on DPF surface. And most air pollutants reduced as average vehicle speed increased. Pollutants were less emitted on motorway section than urban and rural sections. But highly NOx emission on motorway section was verified according to increased EGR ratio on fast vehicle speed. HC and CO additional emission was identified as 68%, 58% respectively during SCR vehicle`s cold engine start emission test. NOx additional emission was detected by 24% on SCR vehicle`s condition of engine cold start while not detected on vehicle equipped with EGR. SCR vehicle`s additional NOx emission was derived from low reaction temperature during engine cold start condition. medium-duty truck emission characteristics were investigated in this study and expected to used to improve air pollutants management policy of medium-duty truck equipped with SCR & EGR.

Factors Influencing Health-Related Internet Activities and Their Outcomes

Lee, Sun Young,Choi, Jounghwa,Noh, Ghee-Young TAYLOR & FRANCIS 2016 JOURNAL OF HEALTH COMMUNICATION Vol.21 No.11

Elevated production of NH₄NO₃ from the photochemical processing of vehicle exhaust: Implications for air quality in the Seoul Metropolitan Region

Link, Michael F.,Kim, Jounghwa,Park, Gyutae,Lee, Taehyoung,Park, Taehyun,Babar, Zaeem Bin,Sung, Kijae,Kim, Pilho,Kang, Seokwon,Kim, Jeong Soo,Choi, Yongjoo,Son, Jihawn,Lim, Ho-Jin,Farmer, Delphine K. Elsevier 2017 Atmospheric environment Vol.156 No.-

<P>A vehicle fleet representative of passenger vehicles driven in the Seoul Metropolitan Region was investigated for primary emissions and secondary chemistry. Exhaust was photochemically oxidized in a flow reactor to determine the ammonium nitrate (NH4NO3) aerosol formation potential from vehicles of gasoline, diesel and liquid petroleum gasoline (LPG) fuel types. Secondary formation of aerosol NH4NO3, was larger than primary emissions for all vehicle fuel types except diesel, for which negligible secondary NH4NO3 production was observed. Although diesel vehicles emitted more primary nitrogen oxides than other vehicle types, ammonia emitted from gasoline and liquid petroleum gasoline fuels types limited the secondary production of NH4NO3. The results suggest that gasoline and liquid petroleum gasoline vehicles with three-way catalysts could be an important source of ammonia for NH4NO3 aerosol formation in ammonia-limited environments, including the Seoul Metropolitan Region. (C) 2017 Published by Elsevier Ltd.</P>

A Cross-Cultural Analysis of the Effect of Social Media Use on Psychological Well-Being : The Role of Motivation, Social Support, and Self-Esteem

Hye-ryeon Lee,Hye Eun Lee,Jounghwa Choi 한국소통학회 2017 한국소통학보 Vol.16 No.2

소셜미디어는 사회적 상호작용의 중요한 부분이 되고 있다. 소셜미디어가 심리적 안녕감에 미치는 영향을 이해하기 위해서는 소셜미디어를 이용하는 개인의 동기를 살펴보는 것이 중요하다. 개인들이 소셜미디어 이용에서 무엇을 추구하는지에 따라 이들의 소셜미디어 이용 정도 뿐만 아니라 그에 따른 심리적 결과 또한 달라질 수 있기 때문이다. 이에 본 연구는 미국(N= 564)과 한국(N= 565)의 대학생을 대상으로 한 설문조사를 통해 소셜미디어 이용동기와 심리적 안녕감 간의 관계를 탐색했다. 더불어 이러한 관계에서 문화적 차이가 나타나는지를 한국과 미국의 데이터를 비교하여 고찰했다. 연구결과, 소셜미디어 이용동기가 소셜미디어 이용(즉, 소셜미디어 사이트 이용 개수)에 미치는 영향은 동기의 종류에 따라 다르게 나타났다. 또한 소셜미디어는 두 가지 매개변인 - 사회적 지지와 자아 존중감 - 을 통해 심리적 안녕감에 영향을 미치는 것으로 나타났다. 이러한 관계의 양태는 미국과 한국에서 차이를 보여, 문화가 이 관계에서 중요한 영향력을 행사함을 제시한다. 이러한 결과가 제시하는 함의 또한 논의되고 있다. Social media has become an important part of social interaction. To understand how social media influences psychological well-being, it is important to examine the motivations behind how people use social media. What individuals seek to gain from social media may influence not only the nature and extent of their use of social media but also the type of psychological outcomes they obtain from it. The present study used survey data from the U.S. (N=564) and Korea (N=565) to investigate cross-cultural differences in the relationship between psychological well-being and six different motivations and outcomes of social media use. The study further investigated cross-cultural differences in the relationship between psychological well-being and social media use by comparing American and Korean college students. The results showed that different motivations exerted varying levels of influence on the number of social media sites used. Moreover, the number of social media sites used was shown to influence psychological well-being through two different outcomes: perceived social support and self-esteem. The pattern of the relationship also differed for the U.S. and Korea, thus demonstrating that culture exerts an influence on the observed relationship. The implications of these findings are discussed.

인터넷 건강정보 추구에 대한 확장된 기술수용모델

노기영(Ghee-Young Noh),최정화(Jounghwa Choi),권명순(Myung Soon Kwon) 한국방송학회 2013 한국방송학보 Vol.27 No.5

팬데믹 상황에서의 인지적 정보처리와 행위적 실천 : 비판적 이해와 사회적 소통능력의 효과를 중심으로

김경희(Kyung-Hee Kim),최정화(Jounghwa Choi) 한국언론정보학회 2021 한국언론정보학보 Vol.109 No.-

이 연구는 팬데믹 상황에서 인포데믹 현상을 경험하면서 허위정보를 판별하고 언론보도를 평가하는 개인의 인지적 정보처리와 공동체를 지지하는 행위적 실천에 주목해보았다. 구체적으로 미디어 리터러시의 핵심적 구성요소인 비판적 이해 및 사회적 소통능력이 팬데믹 관련 정보에 대한 인지적 정보처리(허위정보판별, 언론보도평가)와 행위적 실천(정보추구행동, 공동체 지지행동)에 미치는 영향을 탐구했다. 이를 위해 2020년 6월 4∼11일까지 18∼88세 남녀 1,000명을 대상으로 온라인 설문조사를 실시했다. 연구 결과, 비판적 이해능력은 허위정보판별 및 부정적 언론보도평가와 정적 관계를 나타냈으며, 사회적 소통능력은 허위정보판별과 부적 관계를 갖고 있었다. 또 비판적 이해능력과 사회적 소통능력은 각각 정보추구행동과 정적 관계를, 또 공동체 지지행동과 정적 관계를 나타냈다. 본 연구 결과는 팬데믹 상황에서의 미디어 리터러시의 중요성을 확인시켜주고, 미디어 리터러시가 사회적 실천을 동반한다는 것을 검증해주었다는 점에서 이론적 · 실용적 의미를 갖는다. This study explored the relationships of two media literacy dimensions (critical comprehension and social communication) with two cognitive variables (misinformation judgement, evaluation on COVID-19 news reports) and two behavioral variables (information seeking, community support) in the context of COVID-19 in South Korea. Utilizing data from a large online public opinion survey conducted in South Korea (N = 1,000), a series of regression analysis was conducted. The results suggested that the two media literacy dimensions are significantly related to cognitive and behavioral outcomes. Specifically, critical comprehension was positively related to misinformation judgement and negative evaluation on COVID-19 news reports. Both critical comprehension and social communication were positively related to both of information seeking and community support. This study evidences the importance of media literacy for pandemic control as it showed that media literacy can promote misinformation judgement accuracy and pro-social behaviors during a pandemic situation.